Motor-transmission mechanism



1,521,882 C. W. HDQUBLER MOTOR TRANSMISSION MECH-ANISM.

Filed Nov. 18, 1920 Patented Janie, 1925.

UNITED 4STATES PATENT oFFlcE. f

CHARLES w. HnoUBLnR, or' RACINE, WISCONSIN.

Y MOTOR-TRANSMISSION MECIANISM.

Application led Noyemhei'A 18, 1920. Serial No. 424,936.

l5 rotate at a very high speed and in orderi to eiiiciently use themotors it is necessary to transmit the motion at comparatively a slowrate of speed hy mechanism which will occupy but a minimum amount osace.

lt is one of the objects of the presen invention toprovide aconstruction which will accomplish the loefore .mentioned results in avery simple and efficient manner.

A further object of the invention is to provide an electric motor havinga transmission mechanismv mounted within the motor casing and enclosedtherein in a very Isimple manner.

A further object of the invention is \to provide a motor transmission`mechanism.

arranged to transmit motion at armaturel speed or at a speedconsiderably less than,

armature eed.

further object of the invention is to in 'which the armature shaftextends through the sleeve .of the worbng parts v md rotates in the samedirection as said sleeve.

A iurtherfobject of the invention is to prot/ide a motbr transmissionmechanism which is of rvery lsimple construction, is strong anddurab1e,'and is well adapted for the purpose desci'ibed.

With the above and other objects in view, the invention consists of theimproved motor transmision mechanism Aand its parts and combinationsasset forth in the claims,

and all equivalents thereof.

In the accompanying drawings in which the same reference charactersvindicate the same parte 'in all of the views:

' 1 is a side view, artly in section, of anectric motor provided withthe improved t1'@stilistica mechanism; and

provide a motor transmissionv mechanism,

Fig. 2 is a transverse sectional view thereof taken on line 2 -2 of Fig.1.

Referring to the drawings, the numeral 8 indicates a motor casing ofcylindrical form in cross section which encloses the ield magnets 9 andtheir windings or coils-1. 10 and theo armature 11. The armature 11 ismounted on a shaft 12 whichL extends through the opposite ends ofthecasing and on one end is provided with a `grooved cone 55 wheel 13. @neend portion-'of the shaft is journaled in and extends through `the endhearing 1d while the other end portion is journaled in and extendsthrough a gear when i5 ne as nur portion ie. said hub portion 16 extendsthrough and has itsi hearing in the end portion of the case 'endextension 8 which forms part of the casingS. 'lhe extension casingk 8 isrecessedin the casing 8 and is provided with an in- 75 ner cover orpartition i7 to form an enclosure 18 in which the transmission gearing19 is positioned. A xed stud shaft 2O is mounted in the upper portion ofthe enclosure 18 in alinement with the armature shaft 12. A gear wheel21 and a pinion 22 preferably oi integral structure are `journaled onthe^ stud shaft 20, and the pinion 22 is in mesh with the gear 15 whichsurrounds the armature/shaft 12.., A pinion 23 keyed on the 85 i4armature shaft l2 is in mesh with the -gear As the motor rotates itsarmature, the pinion 23 will transmit motion to the gear 21 at a reducedrate oi speed, andthe inion 90 22 turning with the gear will transmitmotion to the gear 15 at a further reduction in speed. A. groovedstepped pulley 24 keyed on the outer end of the huh 16 provides Jfor aloelted transmission of the power "from said end oi lthe motor. An oildisk 25 having a hevelled peri heral i edge 25 is mounted on the shafty12 a jacent the shaft opening of the innerpartition 17 to throwtheluhricating oil away from the i opening and retain the same within thegear casing. Y

llt is to he understood that the relative size of the gears and pinionsmay be transposed to increase the speed of the outer rotary member abovethe armature speed for high speed grinding or. other purposes wherehigli speed is essential; Y

. From the foregoin description, it will be seen that power may teken,from one end- 11 of the motor at motor speed and at the other end ofthe motor at a greatly reduced speed and that the gear journaled onI thearmature shaft rotates in the same .direction as the shaft.

What I claim as my invention is:

- l. A motor transmission mechanism, comprising a motor having anarmature shaft,

a casing enclosing the motor and through which the shaft extends atrboth ends, a pinion fast on the shaft Within the casing, a stud shaftfixedly mounted in the casing, a gear "wheel positioned within thecasing and journaled on the stud shaft'and in mesh with the pinionapinion .Within the casing and journaled on the stud shaft and connectedto the gear Wheel, a gear Wheel Within the casing and journaledon thearmature shaft and in mesh With the stud shaft pinion and having a hubportion which projects through the casing, a driven member mounted onone end of the shaft, and a driven member mounted on the outer portionof the sleeve at theother end of the shaft.

2. A motor transmission mechanism, comprising a motor having an armatureshaft,

a casing enclosing the motor and through one end portion of which theshaft extends,

.a pinion fast on the shaft, a stud shaft prisinga motor having anarmature shaft,

pinion fast on the shaft Within the transmission chamber, a stud shaftmounted within the chamber, a gearvwheel journaled on the stud shaft andin mesh with the pinion, a pinion on the stud shaft and connected to thegear Wheel, a gear Wheel surrounding the armature shaft and in mesh withthe stud shaft pinion, said armature shaft gear Wheel havin an elongatedhub which extends throug and has its bearing in one end of the casing, adriven Wheel on the outer end portion of the hub, and a driven wheel onthe outer end portion of the armature shaft.

4.' A motor transmission mechanism, comprising a motor having anarmature, a casing yenclosing the motor, an extension casing mounted onone end portion of the casing and having an inner partition forminatransmission chamber, said shaft exten i'ng through the casin and theextension and the partition, a pinion fast on the shaft Within thetransmission chamber and mounted in the extension and the partition, agear Wheel journaled on the stud shaft and in mesh With the pinion, apinion integral with the gear Wheel and journaled on the stud shaft, agear Wheel journaled on the armature shaft and in mesh with the studshaft pinion and having an elongated hub portion which extends throughand is journaled in the extension casing, a Wheel mounted on the outerend portion of the hub, and a Wheel mounted on the outer end portion ofthe armature shaft opposite to the end of the shaft surrounded by theelongated hub.

In testimony whereof, I affix my signature.

CHARLES `W. IIDOUBLER.

